Add prettier

package-lock.json

@@ -6792,6 +6792,11 @@
       "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
       "dev": true
     },
+    "prettier": {
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
+      "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew=="
+    },
     "pretty-error": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/pretty-error/-/pretty-error-2.1.1.tgz",

package.json

@@ -14,6 +14,7 @@
     "highlightjs": "^9.16.2",
     "postcss-import": "^12.0.1",
     "postcss-nested": "^4.2.1",
+    "prettier": "^1.19.1",
     "tailwindcss": "^1.1.3",
     "tailwindcss-interaction-variants": "^2.2.0",
     "tailwindcss-skip-link": "^1.0.1",

prettier.config.js

@@ -0,0 +1,10 @@
+module.exports = {
+  endOfLine: 'lf',
+  printWidth: 80,
+  proseWrap: 'always',
+  quoteProps: 'as-needed',
+  singleQuote: true,
+  tabWidth: 2,
+  trailingComma: 'all',
+  useTabs: false,
+}